Just Cause 2 isnt using my Nvidia GT750 Graphicscard

Hey

I have updated last wednesday the graphics card driver from the Nvidia graphics card to the version 332.21. After I was done I had to test the game Just Cause 2 started and realized that the frame rate of the original 40 frames / second at 9 frames / second is decreased. So I uninstalled all the drivers and am the e-mail dated 25/11/2013 (How do I switch between two graphics cards back and forth [Process: 131123-000209]?) Followed. When I was finished, I realized that nothing has changed. I have Just Cause also associated with the Nvidia graphics card but Just Cause uses this just is not. Now I read on the internet that Just Cause 2 has problems with Nvidia Optimus. And now I ask you, how can I solve the problem?